Modern Connectivity
Seamless Apple CarPlay® and Android Auto™ for navigation, music, and calls.
"Fit perfectly and worked exactly as expected — support was excellent."
Memphis Audio MJP800.4
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Real installer support before and after purchase
Price Match Guarantee
Full Manufacturer 2 Years Warranty
Free 30-Day Returns
Check Compatibility
2 left in stock
Ships within 1-3 days
Authorized Dealer Guaranteed
The Memphis Audio MJP800.4 is a full-range, high-output 4-channel amplifier from the elite MOJO Pro Series, designed to power your mids and highs with incredible clarity and volume. Perfect for competition builds and loud daily drivers, this amp delivers dynamic output across four channels with precise tuning options and rugged construction. Whether you're feeding your pro-audio speakers or bridging power to push midbass drivers or towers, the MJP800.4 gives you full-system control and unmatched performance.
Key Features
| Feature | Description |
|---|---|
| 4 x 200W @ 4Ω / 4 x 300W @ 2Ω RMS Output | High-power output across four channels for full-range speakers |
| 2 x 400W Bridged @ 4Ω | Bridge mode capability for heavy-duty midbass or tower speakers |
| MOJO Pro Engineering | Competition-grade design built for serious power and durability |
| Full-Range Class D Design | Efficient and clean performance from 10 Hz to 50 kHz |
| Variable Crossovers | 50–250 Hz HPF/LPF on both channel pairs for precision tuning |
| High-Level and RCA Inputs | Seamlessly integrates with factory or aftermarket head units |
| MOJO Styling | Bold black and orange design with heat-efficient chassis |
What’s in the Box?
- 1 x Memphis Audio MJP800.4 4-Channel Full-Range Amplifier
- Mounting Hardware Kit
- User Manual
- Memphis Audio MOJO Decal
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase
Memphis Audio MJP800.4
Sale price$399.95
Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Hands-free control reduces distraction and frustrationwhile driving.
Expandable by Design
Add backup cameras, better speakers, amps, or subsanytime.
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
FIND THE RIGHT PRODUCT FOR YOUR EXACT VEHICLE
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
40 Years of Installation Experience
Tens of Thousands of Installs Completed
Authorized Dealer Full Warranties
Why Buying This Here Is Safer Than Anywhere Else
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FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
Free shipping
Free Shipping to the Lower 48 States
Customer service
Our Customer support and sales experts are always available to help
Secure payment
We accept Apple Pay, Paypal, and all major credit cards through our encrypted processor.